Display device and manufacturing method of the same

Abstract

A display device includes a display panel including a display area in which a plurality of pixels is disposed and a bending area bent from the display area, a polarizing layer disposed on the display panel and a light-blocking film layer disposed under the display panel, where an entirety of an upper surface of the light-blocking film layer directly contacts a lower surface of the display panel in the display area, and an area of a lower surface of the light-blocking film layer is smaller than an area of the upper surface of the light-blocking film layer.

What is claimed is: 
     
       1. A display device comprising:
 a display panel comprising:
 a display area in which a plurality of pixels is disposed; and 
 a bending area bent from the display area; 
 
 a polarizing layer disposed on the display panel; and 
 a light-blocking film layer disposed on a first surface the display panel, 
 wherein an entirety of a first surface of the light-blocking film layer facing the display panel directly contacts an entirety of the first surface of the display panel in the display area, and an area of a second surface of the light-blocking film layer opposite to the first surface of the light-blocking film layer is smaller than an area of the first surface of the light-blocking film layer. 
 
     
     
       2. The display device of  claim 1 , wherein the light-blocking film layer comprises:
 a first adhesive layer directly contacting the first surface of the display panel in the display area; and 
 a light-blocking material layer disposed on a first surface of the first adhesive layer opposite to the second surface of the first adhesive layer facing the display panel. 
 
     
     
       3. The display device of  claim 1 , wherein a second surface of the display panel opposite to the first surface of the display panel in the display area directly contacts a first surface of the polarizing layer facing the display panel. 
     
     
       4. The display device of  claim 3 , wherein an area of the first surface of the polarizing layer is identical to an area of the second surface of the display panel in the display area. 
     
     
       5. The display device of  claim 3 , wherein the polarizing layer comprises:
 a second adhesive layer directly contacting the second surface of the display panel; and 
 a polarizing functional layer disposed on the second adhesive layer. 
 
     
     
       6. The display device of  claim 1 , wherein an area of a first surface of the polarizing layer facing the display panel is smaller than an area of a second surface of the polarizing layer opposite to the first surface of the polarizing layer. 
     
     
       7. The display device of  claim 1 , wherein an area of the first surface of the display panel is smaller than an area of a second surface of the display panel opposite to the first surface of the display panel. 
     
     
       8. A manufacturing method of a display device, the manufacturing method comprising: forming an align mark in a dummy area of a mother substrate comprising a display panel area comprising a first area in which a plurality of pixels is disposed and a second area adjacent to is the first area, and the dummy area adjacent to a side of the display panel area; disposing a pre-polarizing layer on the mother substrate to cover an entirety of a first surface of the mother substrate in the first area; disposing a pre-light-blocking film layer on a second surface the mother substrate opposite to the first surface of the mother substrate to cover an entirety of the second surface of the mother substrate in the first area; cutting the mother substrate, the pre-polarizing layer, and the pre-light-blocking film layer along a cutting line which is a boundary between the display panel area and the dummy area to form a display substrate including the plurality of pixels and a dummy substrate including the align mark; and inspecting a cutting defect by imaging the align mark. 
     
     
       9. The manufacturing method of  claim 8 , wherein the dummy substrate comprises: a dummy light-blocking film layer corresponding to a portion of the pre-light-blocking film layer overlapping the dummy area; a dummy panel corresponding to the dummy area of the mother substrate, including the align mark, and disposed on the dummy light-blocking film layer; and a dummy polarizing layer corresponding to a portion of the pre-polarizing layer overlapping the dummy area, and disposed on the dummy panel. 
     
     
       10. The manufacturing method of  claim 9 , wherein the align mark does not overlap the dummy light-blocking film layer in a plan view. 
     
     
       11. The manufacturing method of  claim 8 , wherein the display substrate comprising: a light-blocking film layer corresponding to a portion of the pre-light-blocking film layer overlapping the display panel area; a display panel corresponding to the display panel area of the mother substrate, including the plurality of pixels, and disposed on the light-blocking film layer; and a polarizing layer corresponding to a portion of the pre-polarizing layer overlapping the dummy area, and disposed on the display panel. 
     
     
       12. The manufacturing method of  claim 11 , wherein the display panel comprises: a display area corresponding to the first area, in which the plurality of pixels is disposed; and a bending area corresponding to the second area, and bent from the display area. 
     
     
       13. The manufacturing method of  claim 12 , wherein an entirety of a first surface of the light-blocking film layer facing the display panel directly contacts an entirety of a first surface of the display panel facing the light-blocking film layer in the display area. 
     
     
       14. The manufacturing method of  claim 13 , wherein an area of a second surface of the light-blocking film layer facing the first surface of the light-blocking film layer is smaller than an area of the first surface of the light-blocking film layer. 
     
     
       15. The manufacturing method of  claim 12 , wherein a first surface of the display panel facing the polarizing layer directly contacts a first surface of the polarizing layer facing the display panel in the display area. 
     
     
       16. The manufacturing method of  claim 15 , wherein an area of the first surface of the polarizing layer is identical to an area of the first surface of the display panel in the display area. 
     
     
       17. The manufacturing method of  claim 15 , wherein an area of the first surface of the polarizing layer is smaller than an area of a second surface of the polarizing layer opposite to the first surface of the polarizing layer. 
     
     
       18. The manufacturing method of  claim 11 , wherein an area of a first surface of the display panel facing the light-blocking film layer is smaller than an area of a second surface of the display panel opposite to the first surface of the display panel. 
     
     
       19. The manufacturing method of  claim 8 , wherein the mother substrate, the pre-polarizing layer, and the pre-light-blocking film layer are cut by intense light. 
     
     
       20. The manufacturing method of  claim 19 , wherein the intense light is incident on a first surface of the pre-polarizing layer facing the mother substrate.